Golang Session.AddHandler方法代碼示例

func ListenToDiscord(config *eqemuconfig.Config, disco *discord.Discord) (err error) {
	var session *discordgo.Session
	var guild *discordgo.Guild
	//log.Println("Listen to discord..")
	if session, err = disco.GetSession(); err != nil {
		log.Printf("[Discord] Failed to get instance %s: %s (Make sure bot is part of server)", config.Discord.ServerID, err.Error())
		return
	}

	if guild, err = session.Guild(config.Discord.ServerID); err != nil {
		log.Printf("[Discord] Failed to get server %s: %s (Make sure bot is part of server)", config.Discord.ServerID, err.Error())
		return
	}

	isNotAvail := true
	if guild.Unavailable == &isNotAvail {
		log.Printf("[Discord] Failed to get server %s: Server unavailable (Make sure bot is part of server, and has permission)", config.Discord.ServerID, err.Error())
		return
	}

	session.StateEnabled = true
	session.AddHandler(messageCreate)
	log.Printf("[Discord] Connected\n")
	if err = session.Open(); err != nil {
		log.Printf("[Discord] Session closed: %s", err.Error())
		return
	}
	select {}
	return
}

func main() {

	var err error

	// Check for Username and Password CLI arguments.
	if len(os.Args) != 3 {
		fmt.Println("You must provide username and password as arguments. See below example.")
		fmt.Println(os.Args[0], " [username] [password]")
		return
	}

	// Create a new Discord Session interface and set a handler for the
	// OnMessageCreate event that happens for every new message on any channel
	dg := discordgo.Session{}

	// Register messageCreate as a callback for the messageCreate events.
	dg.AddHandler(messageCreate)

	// Login to the Discord server and store the authentication token
	err = dg.Login(os.Args[1], os.Args[2])
	if err != nil {
		fmt.Println(err)
		return
	}

	// Open websocket connection
	err = dg.Open()
	if err != nil {
		fmt.Println(err)
	}

	// Simple way to keep program running until any key press.
	var input string
	fmt.Scanln(&input)
	return
}

func setupHandlers(session *discordgo.Session) {
	logInfo("Setting up event handlers...")

	session.AddHandler(func(sess *discordgo.Session, evt *discordgo.MessageCreate) {
		message := evt.Message
		switch strings.ToLower(strings.TrimSpace(message.Content)) {
		case "!uptime":
			hostname, err := os.Hostname()
			panicOnErr(err)
			duration := time.Now().Sub(startTime)
			sendMessage(sess, fmt.Sprintf(
				"Uptime is: **%02d:%02d:%02d** (since **%s**) on **%s**",
				int(duration.Hours()),
				int(duration.Minutes())%60,
				int(duration.Seconds())%60,
				startTime.Format(time.Stamp),
				hostname))
		}
	})

	session.AddHandler(func(sess *discordgo.Session, evt *discordgo.PresenceUpdate) {
		logDebug("PRESENSE UPDATE fired for user-ID:", evt.User.ID)
		self := fetchUser(sess, "@me")
		u := fetchUser(sess, evt.User.ID)
		// Ignore self
		if u.ID == self.ID || u.Bot {
			return
		}
		// Handle online/offline notifications
		if evt.Status == "offline" {
			if _, ok := usersOnline[u.ID]; ok {
				delete(usersOnline, u.ID)
				sendMessage(sess, fmt.Sprintf(`**%s** went offline`, u.Username))
			}
		} else {
			if _, ok := usersOnline[u.ID]; !ok {
				usersOnline[u.ID] = struct{}{}
				sendMessage(sess, fmt.Sprintf(`**%s** is now online`, u.Username))
			}
		}
	})

	session.AddHandler(func(sess *discordgo.Session, evt *discordgo.GuildCreate) {
		logInfo("GUILD_CREATE event fired")
		for _, presence := range evt.Presences {
			user := presence.User
			logInfo("Marked user-ID online:", user.ID)
			usersOnline[user.ID] = struct{}{}
		}
	})
}